import java.util.Arrays;

/**
 * User:langchen
 * Date:2022-07-31
 * Time:11:52
 */
public class Studysix {
    public static void main(String[] args) {
        int[] array = {1,2,3};
        int len = array.length;
        System.out.println(len);
        String ret = Arrays.toString(array);
        System.out.println(ret);
        }
}
